Alias, Season 5

Irina:
You should know something, Sydney. I never wanted to have a child. The KGB demanded it. They knew it would insure your father's allegiance to me. You were simply a means to an end. And then, when the doctor put you in my arms and I looked at you, so fragile, all I could think was: how could I have made such a terrible mistake. And at that moment I was sure of one thing: I couldn't be an agent and a mother. I'd either fail at one or both. And I chose to fail at being a mother.